Enum Error 

pub enum Error {
    Transport(Error),
    Config(String),
    Other(Box<dyn Error + Send + Sync>),
    CapabilityPermanent(String),
    CapabilityTransient(String),
    NotImplemented(&'static str),
}

Variants

Transport(Error)

Config(String)

Other(Box<dyn Error + Send + Sync>)

CapabilityPermanent(String)

The backend rejected the call for a reason that won’t go away with a retry: auth failure, malformed key, schema mismatch. Fix the call.

CapabilityTransient(String)

Transient backend trouble: connection blip, timeout, throttle. Safe to retry or nack-with-backoff.

NotImplemented(&'static str)

The impl is a deliberate stub. tonin-redis::EventBus returns this in Phase 4 (Q2). Callers can detect it and fail loud rather than silently dropping work.

Implementations

impl Error

pub fn is_transient(&self) -> bool

True for backend failures that may succeed on retry (network blip, timeout, throttle). Subscriber loops use this to decide between nack-with-backoff and ack-and-drop.

Trait Implementations

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<AuthError> for Error

fn from(e: AuthError) -> Self

Converts to this type from the input type.

impl From<Box<dyn Error + Send + Sync>> for Error

fn from(source: Box<dyn Error + Send + Sync>) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.